bas.ac.uk
Observed Jul 21, 2026, 16:41 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.
Up right now
Email byMicrosoft 365
Secured byLet's Encrypt
Also usesGoogle Search Console
tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat bas.ac.uk actually stands on - every host below is a signed observation
bas.ac.uk
A / AAAA
54.228.199.127
unattributedserves the site
NS
april.ns.cloudflare.comnile.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
bas-ac-uk.mail.protection.outlook.com
Microsoft 365receives its email
TLS
bas.ac.uk
Let's Encryptissued its certificate
DNS Records
A 1
54.228.199.127
MX 1
10bas-ac-uk.mail.protection.outlook.com
TXT 6
MS=ms82104363PS0779790QuoVadis=a794b674-26a3-4ecc-8ccb-6048269e857bgoogle-site-verification=xrbqPw15lQojOFYBM88DVl1uvMui0qpIMSkgkTyGElwv=spf1 ip4:192.171.137.70/32 ip4:72.35.23.0/24 ip4:72.35.12.0/24 ip4:192.162.216.0/22 ip4:208.70.128.0/21 ip4:185.38.180.0/22 ip4:89.104.206.0/23 ip4:68.71.200.64/27 ip6:2a01:77c0:1180::/46 ip6:2a01:77c0:6::/47 ip6:2001:978:2a01::/48 ip6:2001:978:2a02::/48 ip4:93.95.12.0/22 ip4:151.236.208.0/23 ip4:212.57.248.0/24 ip4:195.62.216.0/23 ip4:93.159.202.0/23 include:changepointasp.com include:spf.protection.outlook.com include:spf.dynect.net include:_spf.elasticemail.com include:ciphr247.com ?ip4:81.3.21.107/32 ?ip4:81.3.21.110/32 ~allv=DMARC1;p=quarantine;pct=0;rua=mailto:ZJPR95tF7zH@dmarc-rua.mailcheck.service.ncsc.gov.uk,mailto:dmarc-aggregate@ukri.org
NS 2
april.ns.cloudflare.comnile.ns.cloudflare.com
SOA 1
april.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
bas.ac.uk |
C=US, O=Let's Encrypt, CN=YR2 | Wed, 26 Aug 2026 21:07:24 +0000 |
YR2 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (0)
None observed.
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_c6a50398f02ba8c2- Output Hash
5abf9850506436b3770bc743c1050a093389754e3595c328625c9b727a897237- Signature
ed25519:b88bcf8a42db88b1ee290f1b58282ac8c26366f347560771ee5c00fd0d9952f233dab3f4905f9822b18529e78987c8f9a3502695ab5977d5d7a047fd9d115701- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast